[INFO] fetching crate scryer-prolog 0.9.4...
[INFO] checking scryer-prolog-0.9.4 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate scryer-prolog 0.9.4 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate scryer-prolog 0.9.4 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scryer-prolog 0.9.4
[INFO] finished tweaking crates.io crate scryer-prolog 0.9.4
[INFO] tweaked toml for crates.io crate scryer-prolog 0.9.4 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate scryer-prolog 0.9.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1eeae4282913dbe0af19385379742dde9d4a183132ffdc8f1219aefb3c9560e
[INFO] running `Command { std: "docker" "start" "-a" "d1eeae4282913dbe0af19385379742dde9d4a183132ffdc8f1219aefb3c9560e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1eeae4282913dbe0af19385379742dde9d4a183132ffdc8f1219aefb3c9560e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1eeae4282913dbe0af19385379742dde9d4a183132ffdc8f1219aefb3c9560e", kill_on_drop: false }`
[INFO] [stdout] d1eeae4282913dbe0af19385379742dde9d4a183132ffdc8f1219aefb3c9560e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82836c80bebd2a321b2d898b9a271966128419ae5d5530aabbbf1bff03fab55b
[INFO] running `Command { std: "docker" "start" "-a" "82836c80bebd2a321b2d898b9a271966128419ae5d5530aabbbf1bff03fab55b", kill_on_drop: false }`
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[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:549:23
[INFO] [stdout]     |
[INFO] [stdout] 549 |                 #[cfg(feature = "num")]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:553:27
[INFO] [stdout]     |
[INFO] [stdout] 553 |                 #[cfg(not(feature = "num"))]
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:559:23
[INFO] [stdout]     |
[INFO] [stdout] 559 |                 #[cfg(feature = "num")]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:563:27
[INFO] [stdout]     |
[INFO] [stdout] 563 |                 #[cfg(not(feature = "num"))]
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:646:23
[INFO] [stdout]     |
[INFO] [stdout] 646 |                 #[cfg(feature = "num")]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:650:27
[INFO] [stdout]     |
[INFO] [stdout] 650 |                 #[cfg(not(feature = "num"))]
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:656:23
[INFO] [stdout]     |
[INFO] [stdout] 656 |                 #[cfg(feature = "num")]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:660:27
[INFO] [stdout]     |
[INFO] [stdout] 660 |                 #[cfg(not(feature = "num"))]
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:549:23
[INFO] [stdout]     |
[INFO] [stdout] 549 |                 #[cfg(feature = "num")]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:553:27
[INFO] [stdout]     |
[INFO] [stdout] 553 |                 #[cfg(not(feature = "num"))]
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:559:23
[INFO] [stdout]     |
[INFO] [stdout] 559 |                 #[cfg(feature = "num")]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:563:27
[INFO] [stdout]     |
[INFO] [stdout] 563 |                 #[cfg(not(feature = "num"))]
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:646:23
[INFO] [stdout]     |
[INFO] [stdout] 646 |                 #[cfg(feature = "num")]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:650:27
[INFO] [stdout]     |
[INFO] [stdout] 650 |                 #[cfg(not(feature = "num"))]
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:656:23
[INFO] [stdout]     |
[INFO] [stdout] 656 |                 #[cfg(feature = "num")]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:660:27
[INFO] [stdout]     |
[INFO] [stdout] 660 |                 #[cfg(not(feature = "num"))]
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/ffi.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         unsafe {
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/ffi.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         unsafe {
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IteratorUMP` is never constructed
[INFO] [stdout]   --> src/machine/gc.rs:31:19
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub(crate) struct IteratorUMP {
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `invert_marker` is never used
[INFO] [stdout]   --> src/machine/gc.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn invert_marker<UMP: UnmarkPolicy>(iter: &mut StacklessPreOrderHeapIter<UMP>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OrderedOpDirKey` is never constructed
[INFO] [stdout]   --> src/machine/machine_indices.rs:22:19
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub(crate) struct OrderedOpDirKey(pub(crate) Atom, pub(crate) Fixity);
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `unify_big_num` is never used
[INFO] [stdout]    --> src/machine/unify.rs:456:8
[INFO] [stdout]     |
[INFO] [stdout] 17  | pub(crate) trait Unifier: DerefMut<Target = MachineState> {
[INFO] [stdout]     |                  ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 456 |     fn unify_big_num<N>(&mut self, n1: TypedArenaPtr<N>, value: HeapCellValue)
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]    --> src/arena.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 |         self.0 == other.0 || **self == **other
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ambiguous_wide_pointer_comparisons)]` on by default
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]     |
[INFO] [stdout] 232 |         std::ptr::addr_eq(self.0.as_ptr(), other.0.as_ptr()) || **self == **other
[INFO] [stdout]     |         ++++++++++++++++++      ~~~~~~~~~~        ++++++++++
[INFO] [stdout] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stdout]     |
[INFO] [stdout] 232 |         std::ptr::eq(self.0.as_ptr(), other.0.as_ptr()) || **self == **other
[INFO] [stdout]     |         +++++++++++++      ~~~~~~~~~~        ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]    --> src/rcu.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 196 |         this.data == other.data
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]     |
[INFO] [stdout] 196 |         std::ptr::addr_eq(this.data.as_ptr(), other.data.as_ptr())
[INFO] [stdout]     |         ++++++++++++++++++         ~~~~~~~~~~           ++++++++++
[INFO] [stdout] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stdout]     |
[INFO] [stdout] 196 |         std::ptr::eq(this.data.as_ptr(), other.data.as_ptr())
[INFO] [stdout]     |         +++++++++++++         ~~~~~~~~~~           ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `bindings` are never read
[INFO] [stdout]   --> benches/setup.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub struct PrologBenchmark {
[INFO] [stdout]    |            --------------- fields in this struct
[INFO] [stdout] 55 |     pub name: &'static str,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub bindings: BTreeMap<&'static str, Value>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `strategy`, and `bindings` are never read
[INFO] [stdout]   --> benches/setup.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub struct PrologBenchmark {
[INFO] [stdout]    |            --------------- fields in this struct
[INFO] [stdout] 55 |     pub name: &'static str,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub strategy: Strategy,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 59 |     pub bindings: BTreeMap<&'static str, Value>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OrderedOpDirKey` is never constructed
[INFO] [stdout]   --> src/machine/machine_indices.rs:22:19
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub(crate) struct OrderedOpDirKey(pub(crate) Atom, pub(crate) Fixity);
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `unify_big_num` is never used
[INFO] [stdout]    --> src/machine/unify.rs:456:8
[INFO] [stdout]     |
[INFO] [stdout] 17  | pub(crate) trait Unifier: DerefMut<Target = MachineState> {
[INFO] [stdout]     |                  ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 456 |     fn unify_big_num<N>(&mut self, n1: TypedArenaPtr<N>, value: HeapCellValue)
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]    --> src/arena.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 |         self.0 == other.0 || **self == **other
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ambiguous_wide_pointer_comparisons)]` on by default
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]     |
[INFO] [stdout] 232 |         std::ptr::addr_eq(self.0.as_ptr(), other.0.as_ptr()) || **self == **other
[INFO] [stdout]     |         ++++++++++++++++++      ~~~~~~~~~~        ++++++++++
[INFO] [stdout] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stdout]     |
[INFO] [stdout] 232 |         std::ptr::eq(self.0.as_ptr(), other.0.as_ptr()) || **self == **other
[INFO] [stdout]     |         +++++++++++++      ~~~~~~~~~~        ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]    --> src/rcu.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 196 |         this.data == other.data
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]     |
[INFO] [stdout] 196 |         std::ptr::addr_eq(this.data.as_ptr(), other.data.as_ptr())
[INFO] [stdout]     |         ++++++++++++++++++         ~~~~~~~~~~           ++++++++++
[INFO] [stdout] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stdout]     |
[INFO] [stdout] 196 |         std::ptr::eq(this.data.as_ptr(), other.data.as_ptr())
[INFO] [stdout]     |         +++++++++++++         ~~~~~~~~~~           ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 17s
[INFO] running `Command { std: "docker" "inspect" "82836c80bebd2a321b2d898b9a271966128419ae5d5530aabbbf1bff03fab55b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82836c80bebd2a321b2d898b9a271966128419ae5d5530aabbbf1bff03fab55b", kill_on_drop: false }`
[INFO] [stdout] 82836c80bebd2a321b2d898b9a271966128419ae5d5530aabbbf1bff03fab55b
[INFO] checking scryer-prolog-0.9.4 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate scryer-prolog 0.9.4 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate scryer-prolog 0.9.4 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scryer-prolog 0.9.4
[INFO] finished tweaking crates.io crate scryer-prolog 0.9.4
[INFO] tweaked toml for crates.io crate scryer-prolog 0.9.4 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate scryer-prolog 0.9.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 314e7f50a01b7f1369c0a3f1ff957e126bc4f79df744fccc9583c01e7dae8f6a
[INFO] running `Command { std: "docker" "start" "-a" "314e7f50a01b7f1369c0a3f1ff957e126bc4f79df744fccc9583c01e7dae8f6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "314e7f50a01b7f1369c0a3f1ff957e126bc4f79df744fccc9583c01e7dae8f6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "314e7f50a01b7f1369c0a3f1ff957e126bc4f79df744fccc9583c01e7dae8f6a", kill_on_drop: false }`
[INFO] [stdout] 314e7f50a01b7f1369c0a3f1ff957e126bc4f79df744fccc9583c01e7dae8f6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9bdcd85b7f927ec6018b3705da1d409706fbb9fdbf6bcf8f8ef0bd637f15095e
[INFO] running `Command { std: "docker" "start" "-a" "9bdcd85b7f927ec6018b3705da1d409706fbb9fdbf6bcf8f8ef0bd637f15095e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.71
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[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:549:23
[INFO] [stdout]     |
[INFO] [stdout] 549 |                 #[cfg(feature = "num")]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:553:27
[INFO] [stdout]     |
[INFO] [stdout] 553 |                 #[cfg(not(feature = "num"))]
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:559:23
[INFO] [stdout]     |
[INFO] [stdout] 559 |                 #[cfg(feature = "num")]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:563:27
[INFO] [stdout]     |
[INFO] [stdout] 563 |                 #[cfg(not(feature = "num"))]
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:646:23
[INFO] [stdout]     |
[INFO] [stdout] 646 |                 #[cfg(feature = "num")]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:650:27
[INFO] [stdout]     |
[INFO] [stdout] 650 |                 #[cfg(not(feature = "num"))]
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:656:23
[INFO] [stdout]     |
[INFO] [stdout] 656 |                 #[cfg(feature = "num")]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:660:27
[INFO] [stdout]     |
[INFO] [stdout] 660 |                 #[cfg(not(feature = "num"))]
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:549:23
[INFO] [stdout]     |
[INFO] [stdout] 549 |                 #[cfg(feature = "num")]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:553:27
[INFO] [stdout]     |
[INFO] [stdout] 553 |                 #[cfg(not(feature = "num"))]
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:559:23
[INFO] [stdout]     |
[INFO] [stdout] 559 |                 #[cfg(feature = "num")]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:563:27
[INFO] [stdout]     |
[INFO] [stdout] 563 |                 #[cfg(not(feature = "num"))]
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:646:23
[INFO] [stdout]     |
[INFO] [stdout] 646 |                 #[cfg(feature = "num")]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:650:27
[INFO] [stdout]     |
[INFO] [stdout] 650 |                 #[cfg(not(feature = "num"))]
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:656:23
[INFO] [stdout]     |
[INFO] [stdout] 656 |                 #[cfg(feature = "num")]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `num`
[INFO] [stdout]    --> src/arithmetic.rs:660:27
[INFO] [stdout]     |
[INFO] [stdout] 660 |                 #[cfg(not(feature = "num"))]
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `crypto-full`, `default`, `ffi`, `hostname`, `http`, `repl`, `rust_beta_channel`, and `tls`
[INFO] [stdout]     = help: consider adding `num` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/ffi.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         unsafe {
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/ffi.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         unsafe {
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IteratorUMP` is never constructed
[INFO] [stdout]   --> src/machine/gc.rs:31:19
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub(crate) struct IteratorUMP {
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `invert_marker` is never used
[INFO] [stdout]   --> src/machine/gc.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn invert_marker<UMP: UnmarkPolicy>(iter: &mut StacklessPreOrderHeapIter<UMP>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OrderedOpDirKey` is never constructed
[INFO] [stdout]   --> src/machine/machine_indices.rs:22:19
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub(crate) struct OrderedOpDirKey(pub(crate) Atom, pub(crate) Fixity);
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `unify_big_num` is never used
[INFO] [stdout]    --> src/machine/unify.rs:456:8
[INFO] [stdout]     |
[INFO] [stdout] 17  | pub(crate) trait Unifier: DerefMut<Target = MachineState> {
[INFO] [stdout]     |                  ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 456 |     fn unify_big_num<N>(&mut self, n1: TypedArenaPtr<N>, value: HeapCellValue)
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]    --> src/arena.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 |         self.0 == other.0 || **self == **other
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ambiguous_wide_pointer_comparisons)]` on by default
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]     |
[INFO] [stdout] 232 |         std::ptr::addr_eq(self.0.as_ptr(), other.0.as_ptr()) || **self == **other
[INFO] [stdout]     |         ++++++++++++++++++      ~~~~~~~~~~        ++++++++++
[INFO] [stdout] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stdout]     |
[INFO] [stdout] 232 |         std::ptr::eq(self.0.as_ptr(), other.0.as_ptr()) || **self == **other
[INFO] [stdout]     |         +++++++++++++      ~~~~~~~~~~        ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]    --> src/rcu.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 196 |         this.data == other.data
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]     |
[INFO] [stdout] 196 |         std::ptr::addr_eq(this.data.as_ptr(), other.data.as_ptr())
[INFO] [stdout]     |         ++++++++++++++++++         ~~~~~~~~~~           ++++++++++
[INFO] [stdout] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stdout]     |
[INFO] [stdout] 196 |         std::ptr::eq(this.data.as_ptr(), other.data.as_ptr())
[INFO] [stdout]     |         +++++++++++++         ~~~~~~~~~~           ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `bindings` are never read
[INFO] [stdout]   --> benches/setup.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub struct PrologBenchmark {
[INFO] [stdout]    |            --------------- fields in this struct
[INFO] [stdout] 55 |     pub name: &'static str,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub bindings: BTreeMap<&'static str, Value>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `strategy`, and `bindings` are never read
[INFO] [stdout]   --> benches/setup.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub struct PrologBenchmark {
[INFO] [stdout]    |            --------------- fields in this struct
[INFO] [stdout] 55 |     pub name: &'static str,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub strategy: Strategy,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 59 |     pub bindings: BTreeMap<&'static str, Value>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OrderedOpDirKey` is never constructed
[INFO] [stdout]   --> src/machine/machine_indices.rs:22:19
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub(crate) struct OrderedOpDirKey(pub(crate) Atom, pub(crate) Fixity);
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `unify_big_num` is never used
[INFO] [stdout]    --> src/machine/unify.rs:456:8
[INFO] [stdout]     |
[INFO] [stdout] 17  | pub(crate) trait Unifier: DerefMut<Target = MachineState> {
[INFO] [stdout]     |                  ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 456 |     fn unify_big_num<N>(&mut self, n1: TypedArenaPtr<N>, value: HeapCellValue)
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]    --> src/arena.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 |         self.0 == other.0 || **self == **other
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ambiguous_wide_pointer_comparisons)]` on by default
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]     |
[INFO] [stdout] 232 |         std::ptr::addr_eq(self.0.as_ptr(), other.0.as_ptr()) || **self == **other
[INFO] [stdout]     |         ++++++++++++++++++      ~~~~~~~~~~        ++++++++++
[INFO] [stdout] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stdout]     |
[INFO] [stdout] 232 |         std::ptr::eq(self.0.as_ptr(), other.0.as_ptr()) || **self == **other
[INFO] [stdout]     |         +++++++++++++      ~~~~~~~~~~        ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]    --> src/rcu.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 196 |         this.data == other.data
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]     |
[INFO] [stdout] 196 |         std::ptr::addr_eq(this.data.as_ptr(), other.data.as_ptr())
[INFO] [stdout]     |         ++++++++++++++++++         ~~~~~~~~~~           ++++++++++
[INFO] [stdout] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stdout]     |
[INFO] [stdout] 196 |         std::ptr::eq(this.data.as_ptr(), other.data.as_ptr())
[INFO] [stdout]     |         +++++++++++++         ~~~~~~~~~~           ++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 20s
[INFO] running `Command { std: "docker" "inspect" "9bdcd85b7f927ec6018b3705da1d409706fbb9fdbf6bcf8f8ef0bd637f15095e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bdcd85b7f927ec6018b3705da1d409706fbb9fdbf6bcf8f8ef0bd637f15095e", kill_on_drop: false }`
[INFO] [stdout] 9bdcd85b7f927ec6018b3705da1d409706fbb9fdbf6bcf8f8ef0bd637f15095e